%0 Journal Article %A G. P. Yanev %A N. M. Yanev %T Extinction of Controlled Branching Processes in Random Environments %J Mathematica balkanica %D 1990 %P 368 %V 4 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_1990_4_3-4_a14/ %F MABA_1990_4_3-4_a14